CodeSampleX

Sample

Parse and stringify YAML using parse and stringify

sha256:5243486d04c06037baf06274a0904578254e28161e017b0a7f7860cb82a98a0e

Publication state. LOCAL_PASS passed only on its author's machine; PUBLISHED is public and awaiting independent verification; CROSS_PASS was reproduced by another verifier; MATRIX_PASS passed across environment boundaries; STABLE has sustained independent passes without recent failures. Evidence strength. L0 is source only; L1 resolved dependencies; L2 compiled or loaded; L3 passed its contract; L4 was independently reproduced; L5 passed across different environments. MIT-0

Execution evidence

Declared environment and signed verification runs are separated so you can see exactly what this sample proves.

Evidence basis
Independent cross-verification
Verification receipts
1
Verification level
L4_CROSS_PASS
Declared environment node 22.23 windows 11 x64 node 22.23 javascript npm 10

Verification-run environments

Environment Contract Stages Run
node 22 · linux alpine/x64 · docker ed25519:2175b912ea1c23b1 PASS compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS
CONTAINER_RUN · node-typescript@1
2026-08-19

Case

HOW
Goal
Parse and stringify YAML using parse and stringify
Packages
Symbols
  • parse
  • stringify
Environment
node 22.23.2
Created
2026-08-18T20:13:46Z

Contract

  1. parse parses a YAML string into a JavaScript object
  2. stringify serializes a JavaScript object into a YAML string
  3. parse reviver function transforms values during parsing
  4. stringify replacer function filters or transforms values during stringification
  5. parse throws an error when encountering malformed YAML syntax

Files

  • PROMPT.md
  • csx.json
  • package-lock.json
  • package.json
  • spec.json
  • test/contract.cjs

Download the source artifact (tar.gz)

Origin Seeder

anonymous